Owner's manual

MAX17409
1-Phase Quick-PWM GPU Controller
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DESIGN PARAMETERS 14A DESIGN 9A DESIGN 5A DESIGN
Input Voltage Range 8V to 20V 8V to 20V 8V to 20V
Maximum Load Current 14A 9A 5A
Transient Load Current 10A 7A 4A
COMPONENTS
TON Resistance (R
TON
)
200k
(f
SW
= 300kHz)
170k
(f
SW
= 350kHz)
150k
(f
SW
= 390kHz)
Inductance
(L1)
0.6µH, 17A, 2.3m
NEC-TOKIN MPC0750LR60C
0.75µH, 10.7A, 6.2m
TOKO FDVE0630-R75M
1.50µH, 8A, 12.1m
TOKO FDVE0630-1R5M
High-Side MOSFET (N
HI
)
9.4m/12.0m (typ/max)
Fairchild FDS6298
11m/13.75m (typ/max)
Vishay Si7392DP
14.5m/20.5m (typ/max)
International Rectifier IRF7904
Low-Side MOSFET (N
LO
)
4.2m/5.0m (typ/max)
Fairchild FDS8670
5m/6.5m (typ/max)
International Rectifier IRF7822
10m/13m (typ/max)
International Rectifier IRF7904
Output Capacitors
(C
OUT
)
1x 470µF, 6m, 2V
SANYO 2TPE470M6
1x 330µF, 6m, 2V
SANYO 2TPE330M6
1x 220µF, 6m, 2V
SANYO 2TPE220M6
Input Capacitors
(C
IN
)
2x 10µF, 25V ceramic (1210) 1x 10µF, 25V ceramic (1210) 1x 10µF, 25V ceramic (1210)
REF/ILIM Resistance (R2) 10k 17.8k 20k
ILIM/GND Resistance (R3) 63.4k 60.4k 54.9k
FB Resistance (R
FB
) 100 100 100
Feedforward Capacitance
(C3)
0.22µF 0.15µF 0.1µF
LX/CSP Resistance (R10) 1.3k 1.3k 1.3k
CSP/CSN Series Resistance
(R11 + NTC1)
2k + 10k NTC (B = 3380) 2k + 10k NTC (B = 3380) 2k + 10 NTC (B = 3380)
DCR Sense Capacitance
(C7)
0.22µF, 6V ceramic (0603) 0.1µF, 6V ceramic (0603) 0.1µF, 6V ceramic (0603)
IMON Resistance (R
IMON
) 6.81k 3.92k 3.24k
Table 1. Component Selection for Standard Applications
MANUFACTURER WEBSITE
AVX Corporation www.avxcorp.com
Fairchild Semiconductor www.fairchildsemi.com
NEC-TOKIN America, Inc. www.nec-tokinamerica.com
Panasonic Corp. www.panasonic.com
SANYO Electric Co., Ltd. www.sanyodevice.com
MANUFACTURER WEBSITE
Taiyo Yuden www.t-yuden.com
TDK Corp. www.component.tdk.com
TOKO America, Inc. www.tokoam.com
Toshiba America Electronic
Components, Inc.
www.toshiba.com/taec
Vishay www.vishay.com
Table 2. Component Suppliers